number 6 please nent-ld??452 120-1?course,id:77 Protects your eyes from splashes

Question

number 6 please

nent-ld??452 120-1?course,id:77 Protects your eyes from splashes or broken glass O None of the above QUESTION 4 What is the role of the H202 that is used in this experiment? O Catalyzes the reaction O Holds the space the product gas will occupy O Decamposes to form a gaseous roduct O O Protects your eyes from splashes or broken glass None of the above QUESTION 5 Consider the following situation in answering Questions 5 through 10 A student performed the experiment described in your lab handout. She used 4.972 grams of hydrogern solution and roughly 10 mL of 1.0 M KI and produced 71.7 mL of gas. The experiment was performed 27°C. The barometric pressure was 761 4 torr What was the part?al pressure of water vapor (in torr) in the 100 mL graduated cylinder? Look at Table 1 in the laib Type your numerical answer in the space below without units QUESTION 6 What is the partial pressure (in atm) of O2 in the 100 mL graduated cylinder? First, calculate the partial pressure of 02 in torr Po2 Pbarometic Pwater Pwater is your answer to Question 5 Then, convert this pressure to units of atm. 1 atm -760 torr (exact) Type your numerical answer in the space provided without units Express your answer to 4 significant figures. QUESTION 7 How many moles of 02 were produced in the reaction? pV= nRT To answer this nuestion vou need to use the ideal o Click Save and Submit to save and submit Click Save Al Anoupers to save all ansuers. Save

Explanation / Answer

6.

Vapour pressure of water at 270C = 26.74 torr

PO2 = Pbarometric - Pwater vapour

PO2 = 761.4 - 26.74

PO2 = 734.66 torr

PO2 = 734.66 / 760. atm

PO2 = 0.967 atm

Related Questions

Navigate

• Browse (All)
• Browse N
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.